Carbureter.



P Nh. A m Mm m R HU M WA Guo APPLIGATION FILED PEB.12, 1903.

2 SHEETS-SHEET 1.

N0 MODEL.

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WW1/2f PATENTED DGT. 25, 1904.

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. APPLICATION FILED FEB. 12, 1903.

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N0 MODEL.

lime/zio?? UNITED STATES Patented October 25, 1904.

PATENT OFFICE. 'I I' CARBURETER.

SPECIFICATION forming part of Letters Patent No. 773,322, dated October25, 1904.

Application iled February 12, 1903. Serial No. 143,020, (No model.)

To all whom it may con/cern:

Be it known that I, CHARLES W. HINMAN, of Boston, county of Suiolk,State of Massachusetts, have invented an Improvement in Carbureters, ofwhich the following description, in connection with the accompanyingdrawings, is a specification, like characters on the drawingsrepresenting like parts.

This invention relates to carbureters, and has for its object to improvethe construction of the same to the end that a long passage-Way isprovided, arranged in very compact form, having an 'inlet for the airand an outlet for the mixed air and gas, and also to the end that theliquid hydrocarbon will be delivered to said passage-way in minutequantities at intervals along its length.

Figure l shows in plan view a carbureter embodying this invention. Fig.2 is a side elevation of the carbureter shown in Fig. 1. Fig. 3 is avertical section of the carbureter shown in Fig. 1, taken on the dottedline 3 3. Fig. 4 is a side elevation of a portion of the carburetershown in Fig. l, in said figure all of the spiral passage-ways beingomitted ex cept one.

a o c d ef represent six spiral passage-ways,

yet any other number may be employed, if

desired. Thesepassage-ways are made quadrangular in cross-section inorder that they may be made of short llat strips of sheet metal solderedtogether, and they are superimposed to insure compactness as well ascheapness in manufacture. Each spiral passage-wayis here-V in shown ashexagonal, although it need not be thus formed, and comprises eightinclined communicating sections secured together, although any othernumber may be employed. In Fig. 4 one of the spiral passage-ways isshown, and c o2 a3 c* o5 a al as represent the several inclined sectionsthereof. Each section is composed of two parallel side walls, a topwall, and a bottom wall, although in the manufacture of the carbureterthe top wall of each section forms the bottom wall of the section aboveit. Then each spiral passage-way comprises eight inclined sections, asherein shown,said spiral passage-Way makes one complete turn andone-third of the nextturn. The

-side of the several spiral passage-ways.

lower end of one of the spiral passage-ways, as a, Vfor instance, has aninlet am Jfor the admission of air, this being the only inlet to thecompleted passage-way, and the air is admitted at this inlet. Anotherone of the spiral passage-ways, as f, for instance, has an outlet f,which is the outlet for the mixed air and gas, and this is the onlyoutlet from the completed passage-way. The outlet passage-way f is madeas a vertical pipe located on the in- The several spiral passage-waysare connected together` so as to produce one continuous unobstructedpassage-way, and to accomplish this result several vertical passage-waysg t c' j 7c are provided which are composed of flat strips of sheetmetal soldered together to form a quadrangular passage-way` and they arelocated 'outside' of the stack of the spiral passage-ways, and each hasan opening at the top communicating with the Lipper end of one of thespiral passage-ways and an opening at the bottom communicating with thelower end of the next spiral passage-way, so Ythat the air passing upthrough one of the spiral passageways enters the top of one of theupright passage-ways and passes down said passageway and enters thelower end of the next spiral passage-way, and so on through the entireseries.-

A minute quantity of liquid hydrocarbon is supplied to the top of eachspiral passageway, which passes down by gravity, and to thus deliver theliquid hydrocarbon to the several -spiral passage-ways a pipe, as m,leads from a pipe-union n to the top of each spiral passage-way, asrepresented in Fig. 3, thus distributing the liquid hydrocarbon to eachspiral passage-way. A supply-pipe 0 for the liquid hydrocarbon isconnected to the pipeunion a. The air which enters the inlet com irstenters a box-like compartment located beneath said inlet, and saidcompartment serves as a receptacle for any unvolatilized hydrocarbon,and said compartment has a hole at the bottom which is closed by ascrew-plug the removal of which permits the unvolatilized hydrocarbon tobe drawn'o'. The car-- bureted air which is delivered from the pipe fpasses into any usual bell (not shown) which ineloses the earbureter andthence to a delivery-pipe in the usual manner.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, isw

l. A earbureter having a plurality of spiral passage-ways, the upper andlower ends of which are Connected together, to produce a singleunobstructed passage-way having an inlet and an outlet, an air-pipeconnected thereto at the inlet, a pipe connected to each spiralpassage-way which conducts liquid hydrocarbon thereto, adistributingchamber through which said pipes lead, and a supplypipeleading to said. Chamber, substantially as described.

2. A earbureter having a plurality of superirnposed spiral passage-ways,the upper and lower ends of which are connected together to produce asingle unobstructed passage-way having an inlet and an outlet, anair-pipe Connected thereto at the inlet, a pipe connected to eaeh spiralpassage-way Which Conducts liquid hydrocarbon thereto, adistributing-Chamber from which said plurality of pipes lead, and asupply-pipe leading' to said chamber, substantially as described.

In testimony whereof I have signed my narne to this speeilieation in thepresence of two subscribing' witnesses.

CHARLES IV. HINMAN.

Witnesses:

Louis H. HARRIMAN, IWI. M. PIPER.

